Anomalous thresholds in $B\to (P,V){\gamma }^{\ast }$ form factors

Simon Mutke, Martin Hoferichter, Bastian Kubis

We study the effects of anomalous thresholds on the non-local form factors describing the hadronization of the light-quark contribution to $B\to (P,V){\gamma }^{\ast }$ transitions. Starting from…